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11-28-2012, 01:51 PM | #91 |
0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
Location: so cal
Posts: 926
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I can't directly comment since I'm a pretty terrible welder but SS requires a different kind of gas and filler material.
I guess it depends on if you're using a Flux weld material or MIG/TIG welding. If its MIG or TIG you need gas otherwise it'll splatter and sugar really bad plus just weld like crap. I think this might be helpful (http://www.brazing.com/techguide/pro.../stainless.asp) |
11-28-2012, 11:11 PM | #92 |
Drives: 2005 Toyota Echo Join Date: Aug 2010
Location: Brampton, ON
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2006 Saturn Ion Redline 2005 Toyota Echo RS 4dr hatch - Cyl #3 bad - sold 2000 Toyota Echo 2dr coupe - The track car - rusty & scrapped |
11-30-2012, 11:06 PM | #93 |
0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
Location: so cal
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Here are my baseline numbers. The car is stock aside from a DC header, MI pulley, and a K&N air filter.
I'm guessing Toyota breathed a little extra magic on my car when it was made. Also an acceleration run in 2nd gear from 12-62 mph. Just to get an idea of vehicle acceleration, another thing to add aside from dyno numbers. http://www.youtube.com/watch?v=dquJk...&feature=g-upl |
11-30-2012, 11:16 PM | #94 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
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Looks like they did a 2nd gear pull. Makes the numbers inflated, but it's only for comparison. As long as you use the same dyno.
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11-30-2012, 11:25 PM | #95 |
0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
Location: so cal
Posts: 926
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Yeah, Church's is known to dyno high as well, I think he uses a gear correction for torque to negate which gear the pull was made. The numbers just seemed high to me even if I took 15% off.
I got a kick out of it because I was making the same amount of power as Jason up until his cams started doing their thing. BTW my motor has 100k on the clock so it shows how impressive these engines are even after a long life of use. |
11-30-2012, 11:35 PM | #96 | |
Drives: 2015 H Production Yaris Join Date: Oct 2009
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Quote:
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11-30-2012, 11:38 PM | #97 |
0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
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Hmm, he showed me a side by side and there was a big boost at 5k or so, and he said it was because of the aftermarket cam.
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11-30-2012, 11:42 PM | #98 |
Drives: 2015 H Production Yaris Join Date: Oct 2009
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Not sure what he showed you, but it had to be old if the number was that low. Likely from when we first got the car and had the camcon. And none of the cams have made low end, they all lost tq, they dont start to make power till way up high.
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11-30-2012, 11:43 PM | #99 |
0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
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No the number was way higher than mine but the curves were really similar up until 5k or so than yours sort of shot up by 15 or so and kept climbing.
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11-30-2012, 11:48 PM | #100 |
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I misunderstood. Yeah most of the stuff we did to the engine would not help for autocross, we just could not find tq. Maybe your header will change that.
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12-01-2012, 12:30 AM | #101 |
0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
Location: so cal
Posts: 926
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Well if everything goes according to plan I should have the new header finished and running next week.
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12-01-2012, 08:13 PM | #102 | |
Obsessed with 1.5L
Drives: '10 PW Yaris Sedan Join Date: Feb 2011
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Quote:
to get an idea of how much front scratchers (FWDs) boucne about. go to your local test-n-tune with all the kids beating the fuck out their cars...its quite alarming. the flex joint NEEDS to be located as close as possible to the motor to reduce the leverage on the rest of the exhaust, period. the further away it is, the less its able to absorb.
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12-01-2012, 10:30 PM | #103 | |
0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
Location: so cal
Posts: 926
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Quote:
Yep, but you can't package a a flex joint in the location it needs to be in with joints that are a proper diameter. |
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12-02-2012, 12:56 AM | #104 | |
play every day
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Quote:
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12-02-2012, 01:01 AM | #105 | |
play every day
Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012
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Quote:
I only have a flux core welder with no gas, so that won't cut it. If I need anything done, I'll just go to the pro welder who does the manifolds. |
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12-02-2012, 01:20 AM | #106 |
0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
Location: so cal
Posts: 926
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Flux core welds look like crap but you should be able to weld SS with it as long as you have the correct filler.
There's also quite a bit more that needs to be considered with header design, just welding longer tubes can actually result in power loss if it calls into a dead range where the reverse shockwave happens too quickly or too slowly. There are other things to consider in regards to load and heat and such but that would quite a bit of time to type out. |
12-04-2012, 10:28 PM | #107 | |
Drives: 2005 Toyota Echo Join Date: Aug 2010
Location: Brampton, ON
Posts: 505
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Quote:
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2006 Saturn Ion Redline 2005 Toyota Echo RS 4dr hatch - Cyl #3 bad - sold 2000 Toyota Echo 2dr coupe - The track car - rusty & scrapped |
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12-04-2012, 10:58 PM | #108 |
0-60 in slow
Drives: light blue liftback Join Date: Aug 2009
Location: so cal
Posts: 926
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I'm tired of arguing this point. There is lots of math and formulas to determine the best length and diameter for a header. The formula I use specifies something different than what you chose to use. With the dimensions I chose I cannot package a flex pipe on the secondaries and wouldn't do so because laminar flow is substantially worse through a flex pipe than a tube. If you look inside a flex pipe there is a series of baffles which make it behave similar to that of a crush bent tube.
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